Improvement in hydrants



@met @titille JOHN MYERS, 0F CING'lNNATL'OHIO.

Letters Patent No. 102,698, dated May 3, 1870.

IMPROVEMENT IN HYDRANTS.

The Schedule referred to in these Letters Patent and making part of the same,

I, J OHN MYERS, of Cincinnati, Hamilton county,-

Ohio, have invented -a new and useful Non-Freezing and Non-Wasting Hydrant, of which the ibllowing is a specification.

Nature and Objects of the Lu'cution.

This invention relates to that class of hydraulic'appara-tus known as non-freezing and nou-wasting hvdrauts; and M yimprovenientconsists inincreasing the ctiicicncy of such apparatus by the application to them of' two valves, the upper one of which is attached to thc tubular piston-rod, and has a positive movement therewith, while the lower one is simply opened by the action of said rod, and is automatically closed b v a spring of any approved i'orm or construction. A

General Description with Reference to lic Drawings.

Figure 1 is an axial section of my improved hydrant the inlet-pipe B, and a base or flange, C, by whichv these, the iixcd'porlious of4 the hydrant, are secured to the stock. A The upper portion of' this cylinder has an interior screw-thread, a, with which is engaged the screwthreaded portion, d, of barrel D, whose lower end is `made somewhat less in diameter than the interior ot cylinder A, soas to afford an annular spacc,1l, for the passage ot water around the diminished part of lsaid barrel. The diminished part of barrel D is pierced with :t

number of orifices, l?, through which water will flow to the interior of said barrel as soon as the valve G has been depressed by the descent of' the piston-rod, but this valve prevents the escape of vater at any other time, on account ot' its heilig held securely to its seat r/'by the elasticity of a number of fl'ndia-rubber pellets, H, that are confined between the valve and an adj estable screw-threaded plug, I.

The upper end of barrel D is attached to neck J of vacuum-chamber K by screw-threaded connections gl', and the lower and interior end of' said neck constitutes a valve-seat, j. Y

Attached to the tubular piston-rod or delivery-pipe L, and fitting snugly within vacuum-chamber K, is a piston, which is, composed of tivo disks, m in', between which is clamped a cup-leather packing, M.

Secured to delivery-pipe L, immediately below the piston M,is a disk-valve, N, which, when the hydrant is opened, rests upon its seat k, as shown iu fig. v2.

The pipe or piston-rod L is screw-threaded at 7, to

permit the attachnn-.nt of avalvc, 0, which is coniined within au annulus, l), by nuts o o Said annulus is soun-what less in diau'icter thanbarrcl l), and is provided with wings p, that confine theL pipe L to an axial position within said barrel.

'.lhc lower end of' piston-rod L carries a head, 1t, which, by impinging against valve G, dcpresses and ope-us thc latter whenever pistou-rod L is forced down to position shown in ligure 2.

The top of' chamber K is closed by a cap, S, having a smiling-box, 'l`, through which passes the deliverypipo L.

U is a gasket interposed between the top of' chamber K and its cap S,

'The tubularI pistou-rod L is provided, near its lower end, with a series of" apertures, V, through which water flows to or from thc interior of said rod.

lrevious to insertion of' the hydrant in thc fixture A,'the barrel Dis immovably attached to the parts above it by the insertion of' a screw, \V, in the neck J. lThis provision enables ally that portion of' the hydrant above the fixture A to bo screwed into or out ot' said fixture without 'disturbing the other joints, so as to enable the hydrants to be at any time removed bodily for inspection or repair, and returned toits piace without disturbing the ground.

L' llhcsc'detached parts of the hydrant are unscrcwcd by simply grasping the nut X with a suitable wrench that may be inserted from the top oi' the. stock. Operation.

To open the hydrant, thc pipo L is depressed, which may be effected by moans of' a customary lcvcr or scrcv at the top of' the stock, and this depression of said pipe brings valve N to' bear upon its seat k, ca-rrics valve (l) away f'rom its scatj, and forces valve down, so as to uncover thooriticcs ll",`and thereby af'- ford an uniuterrupted flow of' water through inlet-pipe B, annular chamber E, orifices l", barrel l), apertures V, and thence out at the delivery end of' pipe L. The depression of Ipipc L also carries the plunger )I down to the bottom 'of vacuuni-chamber K;

'lo sluit ofi' the water, pipe L is elevated, thus roinoving the pressure ot' head 1t li'om the lowcr valve G, and permitting tho closure of' the latter by the elastic action of' thecomprossed'pellcts ll', thereby cf'- fectnally closinfi the orifices F and stopping thc flow ot water from below into barrel l).

'lhc elevation of pipc L carries` plunger M. along with it, which, producing a vzwiuuu'iu chamber K, causes the water to flow therein from pipe L out oi' reach offi'ost, (scc arrows in fig. 1.)

, Then pipe L has completed its upward stroke,V

Avalve 0 is brought to bear upon its seat j, thus rendering it impossible for water to escape, even 'in ease the lower valve G should leak.

By simply screwing 4up the plug I, 'the pellets H will be compressed accordingly, and the valve G held to its seat with an increased pressure.

It will be seen that the provision of the two valves,

G and O aords a double security against leakage when the hydra-nt is closed.

Claims.

I claim herein as new 'and of 'my own invention- 1. The combination, substantially as described, ofA the inlet-cylinder A a, barrel D d d', passage E, oritices F, vacuum-chamber K, perforated deliver'ypipes L V, plunger M, seats j k, positively-closing valves N O, and automatially-elosing valve G g, for the purposes set forth. f v

2. The arrangement and combination of the barrel D with orifices F, at its upper portion, the automatically-closing valve G g, springs H, and adj nstable screwthreaded plug J, for the object explained.

In testimony of which invention, I hereunto set `my hand.

J OHN MYERS.

Witnesses:

GEO, H. KNIGHT, JAMES H. LAYMAN. 

